We don't just supervise your chargers. We watch them like our own.
Remote diagnostics, on-site intervention with parts on board. AC and DC chargers, HV/LV transformers. Mainland France and Belgium.
2,000 faults resolved a year. Here's how.
Six disciplines. One single point of contact. From commissioning to motherboard replacement, we cover the whole chain.
Commissioning
OCPP 1.6/2.0.1 configuration, supervisor connection, tariff grids (peak/off-peak, roaming), connector testing with a vehicle, on-site training. Signed handover report.
- OCPP configuration and supervisor (CSMS) connection
- Tariff setup, charge testing and roaming validation
- On-site operator training and commissioning report
Preventive Maintenance
Quarterly or biannual visits: insulation, torque, RCDs, firmware, CCS/T2 connectors, thermal camera. Result: 60% fewer faults.
- Quarterly inspections with a standardised checklist
- Electrical checks, torque tightening and firmware updates
- CCS/T2 connector cleaning and infrared thermography
Corrective Maintenance
Remote diagnostics via OCPP (40% resolved without a site visit), technician on site within 24 business hours. Critical parts in regional stock. Loan charger if needed.
- Remote OCPP diagnostics and response within 24 business hours
- Critical spare parts in regional stock
- Replacement with a loan charger within 24 hours
24/7 Monitoring
The status of every charger in real time. Configurable SMS/email alerts. Monthly KPI reports: uptime, kWh delivered, number of sessions. SLA tracked continuously.
- Real-time dashboard per site and per charger
- Configurable automatic SMS/email alerts
- Monthly KPI reports: uptime, kWh, sessions
Fleet Management
Usage analysis per charger: sessions, kWh, occupancy rate. Power and charging-point recommendations. RFID/badge management and energy control.
- Usage analysis per charger and site, with recommendations
- Centralised management of RFID access and badges
- Energy control, load balancing and load shedding
User Support
24/7 hotline (FR/EN/NL), a number dedicated to your brand. Escalation to a field technician if needed. The ticket stays open until resolution.
- 24/7 multilingual hotline with a dedicated number per CPO
- Real-time driver chat and knowledge base
- Escalation to a field technician with ticket tracking
Maintenance of HV/LV Transformers
70% of DC charger faults come from the upstream HV/LV substation. Not the charger itself. Most EV charging maintainers won't touch the transformer. We do.
Our HV-certified technicians work on protection cells, cable compartments, busbars, main distribution boards, oil and dry transformers, capacitor banks and circuit breaker disconnectors. One contract, one provider, from the HV cell all the way to the charging point.
of DC faults come from the transformer
lifespan with preventive maintenance
unplanned outages when the transformer is monitored
Our areas of expertise
HV switchgear cells & cable compartments
Oil & dry-type transformers
Main distribution boards & busbars
Circuit breaker disconnectors & fuses
Capacitor banks
Dielectric analysis & thermography
The detail of every intervention
Chargers or transformers: here is exactly what our technician does on site
EV Chargers
AC maintenance (3.7-22 kW) & DC (50-350 kW)
EV Chargers
AC maintenance (3.7-22 kW) & DC (50-350 kW)
Commissioning
- •Electrical installation check (NFC 15-100 compliance)
- •Charger setup and configuration
- •AC/DC charge testing and OCPP protocol validation
- •Supervision setup and management system integration
Preventive maintenance
- •General visual inspection (casing, screen, connectors)
- •Cleaning of charging plugs and connectors
- •Torque check on electrical connections
- •RCD and circuit breaker testing
- •Infrared thermography of power components
- •Firmware and embedded software updates
Corrective maintenance
- •Fault diagnosis (error codes, OCPP logs)
- •Component replacement (motherboard, screen, connector, cable)
- •AC/DC power module repair
- •RFID reader and payment system replacement
- •Recommissioning and full functional testing
Connectors & cabling
- •Charging cable condition check (Type 2, CCS, CHAdeMO)
- •Plug locking and retraction mechanism check
- •Worn cable and connector replacement
- •Internal wiring and terminal block inspection
Monitoring & remote management
- •Remote diagnosis via monitoring platform
- •Remote restart and error reset
- •OTA (Over-The-Air) firmware updates
- •Charging session monitoring and real-time alerts
Electrical protection
- •RCD testing (Type A, Type B)
- •Surge protector and overvoltage protection check
- •Earthing check and resistance measurement
- •Phase balancing check (three-phase)
HV/LV Transformers
Switchgear, main distribution boards, oil & dry transformers, circuit breakers
HV/LV Transformers
Switchgear, main distribution boards, oil & dry transformers, circuit breakers
HV switchgear cells
- •Visual inspection (chalking, cracks, heat marks)
- •Dust removal and general cleaning
- •Interlock check
- •Control compartment: switching test and operation check
- •Control mechanism and earthing switch cleaning
- •Earthing control check
- •Electrical auxiliary equipment check
Cable compartment
- •Enclosure visual inspection (chalking, cracks, heat marks)
- •Connection check (torque, chalking, heat marks)
- •Cable inspection (chalking, heat marks)
- •Cable termination check (torque, fixation)
PASA cabinet
- •Cell mechanical interlock check and testing
- •Electrical testing and transfer switch (NSM) check
- •Battery charge level check
Busbars (de-energised)
- •Busbar inspection
- •Torque check (heat marks)
- •Insulator check (chalking, heat marks)
HV substation main distribution board
- •Connection check (torque, chalking, heat marks)
- •Cable and termination check (torque, fixation)
- •LV main circuit breaker operations
- •General cleaning and torque check
- •Earthing and interlock check
- •Transformer protection check
- •Insulation measurement and transformation ratio testing
Oil transformer
- •Dielectric oil sampling and analysis
- •Full visual inspection
- •General cleaning
- •Leak check
- •Connection torque check
Dry transformer
- •Dry air pressure cleaning (dust particle removal)
- •Visual inspection of insulators and conductive parts
- •Electrical connection torque check
- •Earthing continuity check (TIT neutral, metal frames)
- •Earth resistance measurement (value ≤ 1 Ω)
Circuit breaker disconnector (Master Pack)
- •Cleaning and dust removal
- •Moving parts wear inspection
- •Line disconnector cleaning and lubrication
- •Insulator check (chalking, heat marks)
- •Circuit breaker interlock and contact resistance check
- •Plug-in contact inspection (if withdrawable)
HV fuses
- •Visual fuse inspection (chalking, colour, cracks, corrosion)
- •Fixation and signalling check
- •Fuse-blow tripping check
- •Fuse impedance check
- •Replacement if > 10 years (additional quote)
Capacitor bank (option)
- •Cabinet ambient temperature check (< 50 °C)
- •Unbalance current check and protection relay adjustment
- •Varmetric regulator check (cos φ, timing, C/K, steps)
- •Capacitor discharge check after lockout
- •Full cleaning, ventilation dusting and bank cleaning
- •Visual capacitor inspection (leaks, swelling)
- •Capacitance measurement and fuse impedance testing
Transformer dielectric analysis
- •Transformer contamination level measurement
- •Liquid dielectric quality characterisation
- •Internal condition assessment for electrical incident prevention
- •Complete transformer health check for maximum safety
Level 2 main distribution board revision
- •Technician visit and risk identification
- •HV / transformer / LV circuit breaker equipment identification
- •Equipment obsolescence and safety accessories review
- •Fuse check (chalking, colour, cracks, corrosion) and leak testing
- •Renovation and anticipation of age-related degradation
- •Tailored solutions based on HV substation age
Supervision takeover, friction-free.
Got unsupervised or poorly connected chargers? We integrate them into our OCPP platform and give you back real-time visibility.
Private AC
Apartment buildings, businesses, hotels. AC chargers from 3.7 to 22 kW on a private network. OCPP supervision, access management, consumption readings.
Public AC
Public car parks, shopping centres, local authorities. OCPP supervision with GIREVE feed, integrated payment, 24/7 monitoring.
Private DC
Corporate fleets, logistics depots. DC chargers from 50 to 400 kW. Advanced supervision, energy control, smart charging.
Public DC
Motorway stations, charging hubs. High-power DC. Real-time supervision, contractual SLAs, operator reporting.
Numbers, not slides
Target contractual uptime
Response within 24 business hours
First-time fix rate
Continuous supervision
Field interventions
All brands. Zero improvisation.
Manufacturer-trained and certified technicians. Access to genuine parts.
Where we operate
Technicians spread across 25+ cities throughout mainland France and Belgium. Response within 24 business hours.
Frequently asked questions
What is your response time in the event of a fault?
Response times are set in your contract (distinct urban and rural SLAs). Thanks to OCPP supervision, a share of incidents is resolved remotely without a site visit. For on-site work, our regional technicians have fully equipped service vehicles and parts in stock.
Which charger brands do you maintain?
We work on every brand on the market: ABB, Schneider, EVBox, Alfen, Kempower, Autel, Tritium, Wallbox, Hager, Legrand, DBT-CEV, Circontrol, Delta and many more. Our technicians are trained and certified by each manufacturer, with direct access to genuine parts and proprietary diagnostic tools.
How does remote supervision work?
Our supervision platform uses the OCPP protocol to collect real-time data from every charger: charge status, error codes, energy consumption and availability. Automatic alerts trigger immediate diagnostics. Technicians can restart a charger, update firmware or adjust the configuration remotely.
What is the difference between preventive and corrective maintenance?
Preventive maintenance anticipates failures through scheduled visits (quarterly or biannual): connector inspection, insulation measurement, torque checks, RCD testing, firmware updates and infrared thermography. Corrective maintenance steps in after a failure to restore service. Customers on regular preventive plans see 60% fewer faults and an extended equipment lifespan.
Do you offer maintenance contracts tailored to your fleet?
Every contract is tailored to the fleet configuration: number of chargers, power ratings (AC and/or DC), geographic distribution of sites and criticality level. Together we define the SLAs, the frequency of preventive visits, the scope of work (chargers, cables, main distribution boards, HV/LV transformers) and reporting arrangements. A dedicated contact coordinates every operation.
Ready to hand over your chargers to a certified EV charging maintainer?
Send us the number of chargers, the brands and the locations. We respond within 24 business hours with a costed proposal.
Further reading
EV charger maintenance: the complete guide
Why, when and how to maintain your EV chargers to guarantee uptime and extend their lifespan.
ReadPreventive vs corrective maintenance for EV chargers
A comparison of the two maintenance approaches for your EV chargers: benefits, costs and the optimal strategy.
ReadEV charger uptime rate
How to reach and sustain an uptime rate above 95% across your EV charger fleet.
Read